Safety connection for gas-fixtures.



C. DE GREY SAFETY CONNECTION FOB. GAS FIXTURES. APPLICATION FILED AUG.15, 1911.

1,017,654, Patented Feb; 20, 1912.

5. provements Fig. 2. is aview partly inlon- "gitudinal section andpartlyin elevation} cross section on the line 44 of Fig; 3.

N TED. \sTATEsr TENr OFFICE.

GERALD 1m GREY, or rnrnADELrHIA, P NNSYLVANIA.

.20 all whom it may concern: I

.Be itiknowri that I, GERALQ DE GREY, a subject, ofthe King of GreatBritain, residing at Philadelphia, in the county of .5-Philadelphia andState of Pennsylvania, have inventedcertain new, and useful Im--provements in Safety 'Connections-ifor Gas- F ixtures, of whichthefollowing isa specification.

My. .invention relates to improvements in" safety connections for gasfixtures,.the object of the invention being to provide an improvedconnection which is utilized at both ends of-a gas tube, one of whichserves as, a connection between the-gas fixture or source of gas supply,and the tube, and the other: between the tube and the burner or Afurther object is to provide a connec- Q tion this character whichcomprises two members,- one': ladapted to telescope within the other andto be securely locked therein,

and when so projected one within the other, the gas controlling. valvewill be opened,

' and when the members are separated either through accidentor design,the valve will automatically'close.

With these and other objects in' view, the

;-inven t-ion'consists incertain novel features 80 of, construction.and', 'comblnations and arrange nentsof parts-, as will be more fully[hereinafterdescribed and pointed out in the claims. r In theaccompanying drawings Figure LES iamjyiewin elevation illustrating my,iniillustratingthe connection between "the sourpemf gas supply and thetube. 3,

'is a view i longitudinal section of the con- I to telescope withintheInember7. Member is provided with an L-shaped notch 10 to receive a pin11 on member 8, so'that-an Specification of Letters Patent. PatentedFeb. Application filed August 15,1911. Serial No. 644,149;

I SAFETY CONNECTION FOR G AS FIXTURES.

ordinary bayonet, joint ,isformed'to lock the members together. On theopposite end of the tube ,9, a member 12 issecured, and cor-.

responds to the member 7 The member 13,

whichcorresponds to member 8 is screwed onto the burner 3, andtelescopes Within member 12, and is secured by a bayonet joint 14, suchas abbvedescribed in connection with the members 7 and 8.

The members 7 and 12 each contain 'improved valve structures which areprecisely alike, and in fact, thesebonnections at the respective ends ofthe hose, are alike, except in the mannerof attachment which. ne-,cessitates a slight change in the structure. As these valves areprecisely alike, the descriptionhereinafter of one will applya-liketight.

' In cylindrical members 7 and. 12, metal sleeves 15 are located, andare held by rubber sleeves 16 around the same,v said rubber sleevesserving to make'the connection gas One .end of metal sleeve 15 has ascrew-threaded opening 17 to receive an externally screw-threaded tube18. 'At the inner end of this tubfe 18, an internal flange 19 isprovided, and constitutes a guide for a tubular valve stem 20 which issecured in a guide sleeve 21 mounted to slide in tube 18. Around thestem20 in the sleeve 18, between 1 "the guide sleeve=21 and'the flange 19, acoiled spring 22'is located, and normally "holds a valve 23 secured tothe inner end of stem 20' on its seat. That is, the valve 23 with itsfacing washer 24, is held againstthe end...of-'t'ube 18,1and openings 25which are provided in the stem 20 adjacent. the valve 23, are heldwithin 'the' tube' 18, so

that the passage of gas through the stem is 28 through which the tubularvalve stem 2Q 'sideofthe larger member, it engages disk The gas may thenflow. through-the valve.

prevented.- The forward end of theguide sleeve 21 is provided with a'flaring disk 26 against which a disk 27 of rubber or other suitablematerial ispositioned, and this '10 disk 27 is provided with a centralopening projects. ,When the smaller member is forced in- 27, and forcesthe valve stem 20 longitudinally against the action ofthe spring 22,

so. that the openings 25 are exposed back of the end of sleeve'18 asshown in Fig. 2.

stem to the burner, as the bayonet joint above described secures themembers in" this position. Should the members become separated'eitherthrough accident or design, spring 22 will immediately close the valveand shut 01f the supply of gas, thus preventing any escape of gas andthe danger which might result therefrom. This automatic shutting off ofthe gas is true at either point of connection, because the valve isWithin the parts 7 and 12, so that if the connection is broken at eitherpoint, the gas will be shut 011'.

The parts are so constructed that the valve may be readily removed forpurposes of repair, as it is simply necessary todraw the sleeve. 15 withits outer rubber sleeve 16 from within the cylindricalsection, and forceit back into place when the valve is repaired.

Various slight changes might be made in the general 'form andarrangement of parts described without departing from my invention, andhence I do not limit myself to the precise details set forth, butconsider myself at liberty to make such changes and alterations asfairly fall within the spirit and scope of the appended claims.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is: a

1. A connection of the character deing against the guide sleeve andnormally holding the valve in closed position, a flaring disk on the endof said guide sleeve, a second disk against the guide sleeve and havingan opening through which the stem projects, the said last-mentioned diskengageable by the smaller member,,substantially as described. 1

2. A connection of the character described, comprising two cylindricalmembers, one member adapted to telescope within the other, means forlocking'the members inftelescoped position, a valve in one member movedby the other to open position, said valve comprising a sleeve, a tubularstem movable through-said sleeve and having openings therein, a valve onthe end of said stem, a guide sleeve secured around said stem andmovable in the first-mentioned sleeve, a coiled spring around the stempressing against the guide sleeve and normally holding the valve inclosed position, a flaring disk on the end of said guide sleeve, asecond disk against the guide sleeve and having an opening through whichthe stem projects, and said last-mentioned disk engageable by thesmaller member, a sleeve frictionally held in the larger section, apacking sleeve around said last-mentioned sleeve, and saidfirst-mentioned sleeve screwed into said frictionally held sleeve,substantially as described.

I In testimony whereof I have signed my name to this specification inthe presence of two subscribing witnesses.

GERALD or. GREY. Witnesses C. R. ZIEGLER, CHAS. E. PoT'rs.

